Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1476
Immunic
IMUX
$82.9M
| $39K | ﹤0.01% |
+29,764
| New | +$39K |
|
1477
Kennametal
KMT
$1.62B
| $39K | ﹤0.01% |
1,567
-9,029
| -85% | -$225K |
|
1478
Neumora Therapeutics
NMRA
$254M
| $39K | ﹤0.01% |
+2,849
| New | +$39K |
|
|
AGEN
1479
Agenus
AGEN
$145M
| $38K | ﹤0.01% |
3,305
+1,648
| +99% | +$18.9K |
|
1480
GraniteShares ETF Trust GraniteShares 2x Long BABA Daily ETF
BABX
$172M
| $38K | ﹤0.01% |
+2,880
| New | +$38K |
|
1481
CareTrust REIT
CTRE
$7.73B
| $38K | ﹤0.01% |
+1,583
| New | +$38K |
|
|
HSAI
1482
Hesai Group
HSAI
$3.96B
| $38K | ﹤0.01% |
+7,610
| New | +$38K |
|
1483
Centrus Energy
LEU
$4.78B
| $38K | ﹤0.01% |
+939
| New | +$38K |
|
|
PPTA
1484
Perpetua Resources
PPTA
$1.87B
| $38K | ﹤0.01% |
9,359
+658
| +8% | +$2.67K |
|
1485
Range Resources
RRC
$8.41B
| $38K | ﹤0.01% |
+1,112
| New | +$38K |
|
|
TWKS
1486
DELISTED
Thoughtworks Holding, Inc. Common Stock
TWKS
| $38K | ﹤0.01% |
15,044
-5,597
| -27% | -$14.1K |
|
1487
Airgain
AIRG
$52.4M
| $37K | ﹤0.01% |
6,929
+1,584
| +30% | +$8.46K |
|
1488
AMC Networks
AMCX
$363M
| $37K | ﹤0.01% |
+3,064
| New | +$37K |
|
1489
A-Mark Precious Metals
AMRK
$669M
| $37K | ﹤0.01% |
+1,213
| New | +$37K |
|
1490
Avnet
AVT
$4.48B
| $37K | ﹤0.01% |
+747
| New | +$37K |
|
1491
Black Diamond Therapeutics
BDTX
$191M
| $37K | ﹤0.01% |
7,492
+7,266
| +3,215% | +$35.9K |
|
1492
ESAB
ESAB
$6.66B
| $37K | ﹤0.01% |
338
+145
| +75% | +$15.9K |
|
1493
Frontline
FRO
$5.31B
| $37K | ﹤0.01% |
1,602
-110,584
| -99% | -$2.55M |
|
1494
Fidelity MSCI Information Technology Index ETF
FTEC
$15.9B
| $37K | ﹤0.01% |
238
+150
| +170% | +$23.3K |
|
1495
loanDepot
LDI
$861M
| $37K | ﹤0.01% |
14,324
-47,755
| -77% | -$123K |
|
1496
Ramaco Resources Class A
METC
$2.04B
| $37K | ﹤0.01% |
2,295
-18,569
| -89% | -$299K |
|
1497
Pliant Therapeutics
PLRX
$91.5M
| $37K | ﹤0.01% |
2,522
-1,675
| -40% | -$24.6K |
|
1498
Urban One Class A
UONE
$67.6M
| $37K | ﹤0.01% |
+13,947
| New | +$37K |
|
|
CMPS
1499
Compass Pathways
CMPS
$487M
| $36K | ﹤0.01% |
4,334
-6,788
| -61% | -$56.4K |
|
1500
ESSA Pharma
EPIX
$9.93M
| $36K | ﹤0.01% |
4,329
+147
| +4% | +$1.22K |
|